US10884120B2 - Vehicular radar device - Google Patents
Vehicular radar device Download PDFInfo
- Publication number
- US10884120B2 US10884120B2 US16/103,556 US201816103556A US10884120B2 US 10884120 B2 US10884120 B2 US 10884120B2 US 201816103556 A US201816103556 A US 201816103556A US 10884120 B2 US10884120 B2 US 10884120B2
- Authority
- US
- United States
- Prior art keywords
- wall surface
- casing
- dustproofing
- bumper
- radar device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
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Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- G01S2007/027—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93271—Sensor installation details in the front of the vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93275—Sensor installation details in the bumper area
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
Definitions
- the present disclosure relates to vehicular radars and, more particularly, to a vehicular radar device capable of enhanced dustproofing.
- a conventional vehicular radar is typically mounted on an inner wall surface of a bumper of a vehicle. After long use, ambient dust readily accumulates in gaps between the bumper and the vehicular body and thus attaches to the surface of the radar's casing. The dust usually contains metallic impurities; as a result, the dust not only interferes with transmission and reception of radar waves but also leads to unexpected scattering and thus generation of noise. For these reasons, radar operability and performance inevitable deteriorates with time.
- a vehicular radar device of the present disclosure comprises a radar module and a non-metallic dustproofing element.
- the radar module has a casing and a radar sensor.
- the casing has a first outer wall surface and a second outer wall surface opposing the first outer wall surface.
- the first outer wall surface of the casing faces an inner wall surface of a bumper.
- the radar sensor is disposed in the casing and has an emission surface.
- the emission surface of the radar sensor faces the first outer wall surface of the casing.
- the non-metallic dustproofing element is made of a material, such as polyurethane, silicone, foam, epoxy and thermoplastic elastomer (TPE).
- TPE thermoplastic elastomer
- the dustproofing element has a first dustproofing surface and a second dustproofing surface.
- the first dustproofing surface of the dustproofing element attaches to the first outer wall surface of the casing of the radar module.
- the second dustproofing surface of the dustproofing element attaches to the inner wall surface of the bumper.
- the first dustproofing surface of the dustproofing element covers the first outer wall surface of the casing of the radar module completely or partially.
- the vehicular radar device of the present disclosure is advantageous in that the dustproofing elements effectively prevent ambient dust from attaching to the first outer wall surfaces of the casing of the radar module. Hence, a sensing signal generated from the radar sensor is not subjected to interference while penetrating the first outer wall surfaces of the casings, so as to enhance sensing sensitivity of the radar module and extend the service life of the radar module.
- FIG. 1 is a perspective view of a vehicular radar device according to the first embodiment of the present disclosure
- FIG. 2 is an exploded view of the vehicular radar device according to the first embodiment of the present disclosure
- FIG. 3 is a partial cross-sectional view of the vehicular radar device mounted on a bumper according to the first embodiment of the present disclosure
- FIG. 4 is an exploded view of the vehicular radar device according to the second embodiment of the present disclosure.
- FIG. 5 is a partial cross-sectional view of the vehicular radar device mounted on a bumper according to the second embodiment of the present disclosure.
- FIG. 6 is an exploded view of the vehicular radar device according to the third embodiment of the present disclosure.
- a vehicular radar device 10 provided in the first embodiment of the present disclosure comprises a chassis 20 , a radar module 30 and a dustproofing element 60 .
- the chassis 20 has a covering plate 21 and a plurality of wing plates 23 .
- the covering plate 21 has a support surface 22 .
- the support surface 22 of the covering plate 21 faces an inner wall surface 14 of a bumper 12 .
- the wing plates 23 are integrally, vertically connected to the outer edge of the covering plate 21 .
- the wing plates 23 are fixed to the inner wall surface 14 of the bumper 12 by fixing components 24 , such as rivets, dowels, raised dots and fasteners.
- the bumper the inner wall surface 14 is integrally formed with positioning posts, raised dots, fasteners or positioning holes to facilitate the fixing function of the fixing components 24 ; hence, a receiving space 25 for receiving the radar module 30 is formed between the covering plate 21 of the chassis 20 and the bumper 12 .
- the radar module 30 has a casing 40 made of a non-metallic material (for example, plastic).
- the casing 40 has a first lateral cover 41 and a second lateral cover 44 .
- the outer edge of the first lateral cover 41 has two first engaging portions 42 .
- the outer edge of the second lateral cover 44 has two second engaging portions 45 .
- the first and second lateral covers 41 , 44 are coupled together by the engagement of the first and second engaging portions 42 , 45 (as shown in FIG. 1 .)
- the first lateral cover 41 of the casing 40 has a first outer wall surface 43
- the second lateral cover 44 of the casing 40 has a second outer wall surface 46 .
- the second lateral cover 44 of the casing 40 has a second outer wall surface 46 .
- the first outer wall surface 43 faces the inner wall surface 14 of the bumper 12 , whereas the second outer wall surface 46 abuts against the support surface 22 of the covering plate 21 of the chassis 20 .
- the outer edge of the second lateral cover 44 of the casing 40 further has lugs 47 , and thus fixing components 48 , such as screws, penetrate the lugs 47 to therefore fasten together the second lateral cover 44 of the casing 40 and the covering plate 21 of the chassis 20 .
- the radar module 30 further has a radar sensor 50 .
- the radar sensor 50 is disposed in the casing 40 and has an emission surface 52 .
- the emission surface 52 of the radar sensor 50 faces the first outer wall surface 43 of the casing 40 such that a sensing signal generated from the radar sensor 50 penetrates the first outer wall surface 43 of the casing 40 and the bumper 12 consecutively in order to be sent.
- the radar sensor 50 When confronted by an obstacle (for example, a vehicle in the front), the radar sensor 50 generates a reflection signal.
- the reflection signal penetrates the bumper 12 and the first outer wall surface 43 of the casing 40 consecutively before being received by the radar sensor 50 ; afterward, the radar module 30 determines the location, angle, speed and distance of the obstacle according to the reflection signal received.
- the dustproofing element 60 is a non-metallic dustproofing element 60 and is made of a material, such as polyurethane, silicone, foam, epoxy and thermoplastic elastomer (TPE). As shown in FIG. 2 and FIG. 3 , the dustproofing element 60 has a first dustproofing surface 61 and a second dustproofing surface 62 .
- the first dustproofing surface 61 of the dustproofing element 60 attaches to the first outer wall surface 43 of the casing 40 of the radar module 30 by a foam tape.
- the second dustproofing surface 62 of the dustproofing element 60 attaches to the inner wall surface 14 of the bumper 12 by a foam tape.
- the dustproofing element 60 is a solid such that the first dustproofing surface 61 of the dustproofing element 60 covers the first outer wall surface 43 of the casing 40 of the radar module 30 completely.
- a dustproofing element 70 is structurally different from its aforesaid counterpart. As shown in FIG. 4 and FIG. 5 , the dustproofing element 70 has a hollowed-out chamber 73 .
- the hollowed-out chamber 73 penetrates first and second dustproofing surfaces 71 , 72 and is hermetically sealed by the inner wall surface 14 of the bumper 12 and a first outer wall surface 83 of a casing 80 .
- the first dustproofing surface 71 of the dustproofing element 70 surrounds the edge of the first outer wall surface 83 of the casing 80 ; hence, a portion of the first outer wall surface 83 of the casing 80 is not covered by the first dustproofing surface 71 of the dustproofing element 70 , so as to enhance the penetration capability of the sensing signal by the hollowed-out chamber 73 .
- the second embodiment of the present disclosure dispenses with the chassis 20 by fixing the casing 80 of the radar module 30 to the inner wall surface 14 of the bumper 12 directly. As shown in FIG. 4 and FIG. 5 , the outer edge of a second lateral cover 82 of the casing 80 integrally extends to form a plurality of wing portions 84 .
- the wing portions 84 are fixed to the inner wall surface 14 of the bumper 12 by the fixing components 24 , such as rivets, raised dots, fasteners and dowels, such that the dustproofing element 70 is held between the inner wall surface 14 of the bumper 12 and the first outer wall surface 83 of the casing 80 or between the inner wall surface 14 of the bumper 12 and inner surfaces of the wing portions 84 .
- the fixing components 24 such as rivets, raised dots, fasteners and dowels
- the first and second embodiments of the present disclosure are interchangeable in terms of structural features, as needed.
- the dustproofing element 60 goes with the casing 80
- the dustproofing element 70 goes with the chassis 20 and the casing 80 , to render the radar module 30 highly dustproof, whichever occurs.
- the way of fixing the radar module 30 and the bumper in place is not limited to the first and second embodiments but may be easier as shown in FIG. 6 .
- the vehicular radar device comprises at least one fixing element 90 with two ends each having a coupling hole 91 .
- the coupling holes 91 are penetrable by the fixing components 24 , respectively, to achieve fixation.
- the radar module 30 is coupledly fixed to the inner wall surface of the bumper by the two fixing elements 90 .
- the dustproofing element is clampedly disposed between the radar module and the inner wall of the bumper or annularly adhered to the periphery of the radar module 30 .
- the inner wall surface of the bumper is integrally formed with positioning posts, raised dots or positioning holes to facilitate the coupling and fixing function of the fixing elements 90 .
- the vehicular radar device 10 of the present disclosure is advantageous in that the dustproofing elements 60 , 70 attach to and thus cover the first outer wall surfaces 43 , 83 of the casings 40 , 80 of the radar module 30 completely or partially such that ambient dust is effectively prevented from attaching to the first outer wall surfaces.
- a sensing signal generated from and received by the radar sensor 50 is not subjected to excessive interference while penetrating the first outer wall surfaces 43 , 83 of the casings 40 , 80 , so as to enhance sensing sensitivity of the radar sensor 50 and extend the service life of the radar sensor 50 .
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Security & Cryptography (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW107123578A TWI708695B (en) | 2018-07-06 | 2018-07-06 | Vehicle radar device |
TW107123578A | 2018-07-06 | ||
TW107123578 | 2018-07-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200011990A1 US20200011990A1 (en) | 2020-01-09 |
US10884120B2 true US10884120B2 (en) | 2021-01-05 |
Family
ID=68943955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/103,556 Active 2039-03-22 US10884120B2 (en) | 2018-07-06 | 2018-08-14 | Vehicular radar device |
Country Status (4)
Country | Link |
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US (1) | US10884120B2 (en) |
CN (1) | CN110749863A (en) |
DE (1) | DE102019112698A1 (en) |
TW (1) | TWI708695B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210391639A1 (en) * | 2019-03-01 | 2021-12-16 | Denso Corporation | On-vehicle radar apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116500548B (en) * | 2023-06-27 | 2023-08-22 | 三亚航空旅游职业学院 | Radar ranging equipment based on electromagnetic wave |
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US4346774A (en) * | 1978-09-26 | 1982-08-31 | Hitachi, Ltd. | Doppler radar mounting structure for motor vehicles |
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2018
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- 2018-07-26 CN CN201810833438.6A patent/CN110749863A/en active Pending
- 2018-08-14 US US16/103,556 patent/US10884120B2/en active Active
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2019
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US4346774A (en) * | 1978-09-26 | 1982-08-31 | Hitachi, Ltd. | Doppler radar mounting structure for motor vehicles |
US7446650B2 (en) * | 1998-01-07 | 2008-11-04 | Donnelly Corporation | Accessory system suitable for use in a vehicle |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210391639A1 (en) * | 2019-03-01 | 2021-12-16 | Denso Corporation | On-vehicle radar apparatus |
US11990667B2 (en) * | 2019-03-01 | 2024-05-21 | Denso Corporation | On-vehicle radar apparatus |
Also Published As
Publication number | Publication date |
---|---|
TWI708695B (en) | 2020-11-01 |
TW202005840A (en) | 2020-02-01 |
DE102019112698A1 (en) | 2020-01-09 |
CN110749863A (en) | 2020-02-04 |
US20200011990A1 (en) | 2020-01-09 |
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